2008-02-22 04:21:48     WM8731 CODEC for BF536

2008-02-22 04:21:48     WM8731 CODEC for BF536

C.C Lu (TAIWAN)

Message: 51496    Does wm8731 driver support BF536 in 2008r1?

The bf5xx-pcm.c misses bf5xx_ac97_pcm32_to_frame and bf5xx_ac97_frame_to_pcm32.

I copy it from bf5xx-ac97.c, then it can compile success.

But i cannot play audio and record audio.

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2008-02-22 10:52:01     Re: WM8731 CODEC for BF536

Robin Getz (UNITED STATES)

Message: 51505    CC:

No - that codec will not work with the ac97 driver. You are better off looking at the AD1836 driver.

-Robin

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2008-02-25 02:26:03     Re: WM8731 CODEC for BF536

C.C Lu (TAIWAN)

Message: 51578    hi, Robin:

If I want to use WM8731 chip in BF536; How to program the driver?

Can WM8731 codec porting to BF536? Or, I must coding a new driver for BF536.

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2008-02-25 13:11:53     Re: WM8731 CODEC for BF536

Mike Frysinger (UNITED STATES)

Message: 51605    we dont have any documentation on writing sound drivers.  you can refer to the ALSA project:

http://www.alsa-project.org/

there is a wm8731.c ALSA SOC codec driver in the kernel, but we've never tested it

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2008-02-29 10:31:22     Re: WM8731 CODEC for BF536

C.C Lu (TAIWAN)

Message: 51904    If I choice BF527 and WM8731, it has some error messages.

The bf5xx-pcm.c unreferenced bf5xx_ac97_pcm32_to_frame and bf5xx_ac97_frame_to_pcm32.

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2008-02-29 11:18:54     Re: WM8731 CODEC for BF536

Michael Hennerich (GERMANY)

Message: 51906    The driver is work in progress.

Not done and tested ...

-Michael